@FunctionalInterface public class UnaryOperator<T>
extends Function<T, T> { }
@FunctionalInterface public class BinaryOperator<T>
extends BiFunction<T, T, T> { }
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I think that code should read
@FunctionalInterface public interface UnaryOperator<T>
extends Function<T, T> { }
@FunctionalInterface public interface BinaryOperator<T>
extends BiFunction<T, T, T> { }
Thank you for giving good details about the book, which allowed me to find its website very easily Please look here, with ctrl‑f‑“various”, and you will find that error has been reported already.
Thank you for giving good details about the book, which allowed me to find its website very easily Please look here, with ctrl‑f‑“various”, and you will find that error has been reported already.
